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Hi Guys. I wonder if anybody has any insight on this. Last year when it was time to put the car away, I had a thread on this with no luck. Now that the weather is improving...I wanna investigate before Im back on the road and thought Id give it another try and see what you guys think.

When the weather is cooler...like down into the 50's and below, when I first start the car I get a very audible knocking. With a stethascope...Ive located its most prominent in the lower half of the bellhousing.

My suspicion is a converter bolt hitting something, but the noise goes away after about 5 minutes of run time and it warms up. Could this have anything to do with the fluid pressure when cold pushing the converter forward and aggrivating the situation?

Anything else you can think of that might "knock" in a turbo 400?
 
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